... reducer, cap, sockets , backnuts , flanges ,unions ,nipples bushings ,etcsize1/2"--6''CoatingsCold galvanizing , hot galvanizing or black and so on.EdgesBanded ... American standard; material ASTM A-197 ;Dimension ASME B16.3 16.14;TheadANSI B1.20.12]British standard; Material ... . Others1 .Special design available according to requirment.2. Min order qty 100pcs.3. Packaging ; carton, wooden or steel pallet ...